CVE-2026-44373

5.3 MEDIUM
Published: May 13, 2026 Modified: May 28, 2026
View on NVD

Description

Nitro is a next generation server toolkit. Prior to 3.0.260429-beta, an attacker could bypass a proxy route rule by sending percent-encoded path traversal (..%2f) in the URL, causing Nitro to forward a request that the upstream resolved outside the configured scope. This vulnerability is fixed in 3.0.260429-beta.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/nitrojs/nitro/pull/4222
Source: security-advisories@github.com
Issue Tracking Patch
https://github.com/nitrojs/nitro/pull/4223
Source: security-advisories@github.com
Issue Tracking Patch
https://github.com/nitrojs/nitro/releases/tag/v2.13.4
Source: security-advisories@github.com
Release Notes
https://github.com/nitrojs/nitro/releases/tag/v3.0.260429-beta
Source: security-advisories@github.com
Release Notes
https://github.com/nitrojs/nitro/security/advisories/GHSA-5w89-w975-hf9q
Source: security-advisories@github.com
Third Party Advisory

5 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.3 / 10.0
EPSS (Exploit Probability)
0.4%
31th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

nitro